Improvement in pumps



specih'cation:

g a packing of indiarubber,tu prevent the UNITED STATES WILLIAM D. BAXTER, 0E NEW YORK,

PATENT OFFICE.I

OF WILLIAMSBURG, ,NEW YORK.

IMPROVEMENT l-N PUMPS.

Specification forming part of Letters Patent No. 172,842, dated February 1, 1876; application led September 13, 1875.

1) all whom it may concern: i

Be it known 4that I, WILLIAM DAVID BAX- TER, of New York city, county and Stateof New York, have invented 'certain Improvements in Pumps, of which the following isa The object of my ii'ivention is to provide for a water-tight joint for the pump-handle of a double-cylinder pump, such packing being1 readily adjusted or removed for renewal or repair. `v y My invention consists in cutting a slot in the top of a hollowsemicircular cover, which cover is adjusted by screws over the topof both cylinders'. Between the cylinders is placed a xed journal, in which theraxle of the double lever, operating the two pistons, is placed. To'the top of this double lever isl cast a circular socket, into'which the lower end ofthe pum p-handle is placed, after first bein gl introduced into the circular cover, through the forementoned slot 'in the top of the saine.

In order to prevent the water from being forced out through this slot a jointis formed segment is cut a hole, through which theA pump-handle passes, after being provided with water from entering the said hole.

ofthe indiarubber packingin the bottom ot the segment, presses the said segment up and forms thus a reliable self-,packing watertight joint for the pump-handle, in its movements back and forth in the slot of the cover.

In order t6 describe my invention more fully, I refer to the accompanying drawing, forming apart ol' this specification. v 1 i `1 Figure I is a vertical section of apump embodying my invention. Fig. IIis a detachedv segment forming the packing, with hole m v and india-rubber packing n. Pis the pumpf' handle, passing through slot. g and the hole m, and resting in the circular socket 1', formed f on the top 'of the double lever C.` S is:the

vspiral spring.

Having thusdescribed my invention, I desire to claimt i The segment H Withhole m and packing n,

in combination with pump-handle P, double lever C,`with socket r,cover G and cylinders A A, substantially as described, and for the purpose set forth. 1

This specification signed September, 1875.

WILLIAM DAVID BAXTER. Witnesses: f' Y O RICHARD GER-NER,-

' against the under side of the circular cover,

ANTON G. GRoNDAL.

ASSIGNOR TO CHARLES E. BAXTER,

'this sul dayy of n 

